74542752 has 72 divisors (see below), whose sum is σ = 216530496. Its totient is φ = 24314496.

The previous prime is 74542729. The next prime is 74542801. The reversal of 74542752 is 25724547.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10783 + ... + 16289.

It is an arithmetic number, because the mean of its divisors is an integer number (3007368).

Almost surely, 2^74542752 is an apocalyptic number.

74542752 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74542752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108265248).

74542752 is an abundant number, since it is smaller than the sum of its proper divisors (141987744).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74542752 is a wasteful number, since it uses less digits than its factorization.

74542752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5570 (or 5559 counting only the distinct ones).

The product of its digits is 78400, while the sum is 36.

The square root of 74542752 is about 8633.8144524885. The cubic root of 74542752 is about 420.8575675312.

The spelling of 74542752 in words is "seventy-four million, five hundred forty-two thousand, seven hundred fifty-two".